IP Library Granted Patent US 8,925,507
Granted Patent B2
US 8,925,507 · App. 13/711,900 · Granted Jan 6, 2015

Camshaft adjuster

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Quick Facts
Patent No.
US 8,925,507
App. No.
13/711,900
Granted
Jan 6, 2015
Kind
B2
Abstract

A camshaft adjuster ( 1 ) is disclosed that has a spring ( 4 ) that is supported by spring supports ( 5 ), and these spring supports ( 5 ) have lubricant reservoirs ( 6 ) for the lubrication of the contact area between the spring wire ( 10 ) and the spring support ( 5 ).

Claims (9)

1. A camshaft adjuster comprising a drive element, a driven element, and a spring, the drive element and the driven element are rotatable relative to each other, the spring is fixed by a spring support of the drive element or the driven element, the spring radially engages against an engagement surface of the spring support, a groove extends into the engagement surface of the spring support, the spring supports a relative rotation between the drive element and the driven element, and a lubricant reservoir is provided between a spring wire of the spring and the groove of the engagement surface of the spring support, in order to lubricate a contact area between the spring wire and the spring support.

2. The camshaft adjuster according to claim 1 , wherein the lubricant reservoir is defined as a region between a two-line contact of the spring wire with the spring support.

3. The camshaft adjuster according to claim 1 , wherein the lubricant reservoir comprises a pocket.

4. The camshaft adjuster according to claim 1 , wherein the lubricant reservoir groove is arranged transverse or inclined relative to the spring wire.

5. The camshaft adjuster according to claim 1 , wherein the lubricant reservoir groove has a circular construction.

6. The camshaft adjuster according to claim 1 , wherein the lubricant reservoir comprises a slot.

7. The camshaft adjuster according to claim 1 , wherein the spring support comprises a peg.

8. The camshaft adjuster according to claim 1 , wherein the lubricant reservoir is produced by shaping processes.

9. The camshaft adjuster according to claim 1 , wherein the lubricant reservoir is constructed as a solid lubricant body.

Assignments (4)
CORRECTIVE ASSIGNMENT TO CORRECT THE PROPERTY NUMBERS PREVIOUSLY RECORDED ON REEL 037732 FRAME 0347. ASSIGNOR(S) HEREBY CONFIRMS THE APP. NO. 14/553248 SHOULD BE APP. NO. 14/553258. Recorded Oct 11, 2016
From: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
To: SCHAEFFLER TECHNOLOGIES AG & CO. KG
Reel/Frame 040404/0530 →
MERGER AND CHANGE OF NAME Recorded Feb 5, 2016
From: SCHAEFFLER TECHNOLOGIES AG & CO. KG; SCHAEFFLER VERWALTUNGS 5 GMBH
To: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
Reel/Frame 037732/0228 →
CHANGE OF NAME Recorded Feb 5, 2016
From: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
To: SCHAEFFLER TECHNOLOGIES AG & CO. KG
Reel/Frame 037732/0347 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 10, 2013
From: WEBER, JURGEN
To: SCHAEFFLER TECHNOLOGIES AG & CO. KG
Reel/Frame 029603/0296 →